containerd environment variable leak
Moderate severity
GitHub Reviewed
Published
Mar 5, 2021
in
containerd/containerd
•
Updated Jan 31, 2024
Package
Affected versions
>= 1.4.0, < 1.4.4
< 1.3.10
Patched versions
1.4.4
1.3.10
Description
Published by the National Vulnerability Database
Mar 10, 2021
Published to the GitHub Advisory Database
Jan 31, 2024
Reviewed
Jan 31, 2024
Last updated
Jan 31, 2024
Impact
Containers launched through containerd's CRI implementation (through Kubernetes, crictl, or any other pod/container client that uses the containerd CRI service) that share the same image may receive incorrect environment variables, including values that are defined for other containers. If the affected containers have different security contexts, this may allow sensitive information to be unintentionally shared.
If you are not using containerd’s CRI implementation (through one of the mechanisms described above), you are not vulnerable to this issue.
If you are not launching multiple containers or Kubernetes pods from the same image which have different environment variables, you are not vulnerable to this issue.
If you are not launching multiple containers or Kubernetes pods from the same image in rapid succession, you have reduced likelihood of being vulnerable to this issue
Patches
This vulnerability has been fixed in containerd 1.3.10 and containerd 1.4.4. Users should update to these versions as soon as they are released.
Workarounds
There are no known workarounds.
For more information
If you have any questions or comments about this advisory:
References